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What is Custer, SD, Weather Like in October?
During the month of October, Custer, SD,
has an average daytime high temperature of 56°F and an average overnight low temperature dropping to 34°F.
Around 1.45 inches of precipitation is received during the month,
with about 19.75 inches falling in a typical year.
3.90 inches of snow is the mean amount received during October.
Annually, Custer receives around 45.80 inches of snow.
October 2025: Actual vs. Average Temperatures
Showing temperatures through today (October 27, 2025)
Actual High
Average High
Actual Low
Average Low
Month Summary
Average High: 60.7 F
(+3.9 vs avg)
Average Low: 39.7 F
(+5.1 vs avg)
This month was significantly warmer than average.
Actual data from: MID_CRRS2
Custer, SD Daily Weather Averages for October
Recorded at Custer
(usc00392087),
0.8 miles
NW of
Custer, SD
| Day | Avg Temps (°F) | Precip (in) | Snow (in) | Degree Days (°F) | |||||
|---|---|---|---|---|---|---|---|---|---|
| Low | High | Mean | Month | Year | Month | Year | Heat | Cool | |
| 10/1 | 40 F | 63 F | 51 F | 0.06" | 18.36" | 0.10" | 42.00" | 13.8 F | 0.1 F |
| 10/2 | 39 F | 62 F | 51 F | 0.12" | 18.42" | 0.10" | 42.00" | 14.3 F | 0.1 F |
| 10/3 | 39 F | 62 F | 50 F | 0.18" | 18.48" | 0.20" | 42.10" | 14.8 F | 0.1 F |
| 10/4 | 38 F | 61 F | 50 F | 0.24" | 18.54" | 0.30" | 42.20" | 15.3 F | 0.1 F |
| 10/5 | 38 F | 61 F | 49 F | 0.30" | 18.60" | 0.40" | 42.30" | 15.8 F | N/A |
| 10/6 | 38 F | 60 F | 49 F | 0.36" | 18.66" | 0.50" | 42.40" | 16.2 F | N/A |
| 10/7 | 37 F | 60 F | 48 F | 0.41" | 18.71" | 0.60" | 42.50" | 16.7 F | N/A |
| 10/8 | 37 F | 59 F | 48 F | 0.46" | 18.76" | 0.70" | 42.60" | 17.2 F | N/A |
| 10/9 | 36 F | 59 F | 47 F | 0.51" | 18.81" | 0.80" | 42.70" | 17.7 F | N/A |
| 10/10 | 36 F | 58 F | 47 F | 0.56" | 18.86" | 0.90" | 42.80" | 18.1 F | N/A |
| 10/11 | 35 F | 58 F | 46 F | 0.61" | 18.91" | 1.00" | 42.90" | 18.6 F | N/A |
| 10/12 | 35 F | 57 F | 46 F | 0.67" | 18.97" | 1.10" | 43.00" | 19 F | N/A |
| 10/13 | 35 F | 57 F | 46 F | 0.72" | 19.02" | 1.20" | 43.10" | 19.4 F | N/A |
| 10/14 | 34 F | 56 F | 45 F | 0.77" | 19.07" | 1.40" | 43.30" | 19.9 F | N/A |
| 10/15 | 34 F | 56 F | 45 F | 0.82" | 19.12" | 1.50" | 43.40" | 20.3 F | N/A |
| 10/16 | 33 F | 55 F | 44 F | 0.87" | 19.17" | 1.60" | 43.50" | 20.7 F | N/A |
| 10/17 | 33 F | 55 F | 44 F | 0.91" | 19.21" | 1.70" | 43.60" | 21.1 F | N/A |
| 10/18 | 33 F | 54 F | 44 F | 0.96" | 19.26" | 1.90" | 43.80" | 21.4 F | N/A |
| 10/19 | 32 F | 54 F | 43 F | 1.00" | 19.30" | 2.00" | 43.90" | 21.8 F | N/A |
| 10/20 | 32 F | 54 F | 43 F | 1.05" | 19.35" | 2.10" | 44.00" | 22.2 F | N/A |
| 10/21 | 32 F | 53 F | 43 F | 1.09" | 19.39" | 2.30" | 44.20" | 22.5 F | N/A |
| 10/22 | 31 F | 53 F | 42 F | 1.13" | 19.43" | 2.40" | 44.30" | 22.9 F | N/A |
| 10/23 | 31 F | 53 F | 42 F | 1.17" | 19.47" | 2.60" | 44.50" | 23.2 F | N/A |
| 10/24 | 31 F | 52 F | 42 F | 1.21" | 19.51" | 2.70" | 44.60" | 23.5 F | N/A |
| 10/25 | 30 F | 52 F | 41 F | 1.24" | 19.54" | 2.90" | 44.80" | 23.9 F | N/A |
| 10/26 | 30 F | 52 F | 41 F | 1.28" | 19.58" | 3.00" | 44.90" | 24.2 F | N/A |
| 10/27 | 30 F | 51 F | 41 F | 1.31" | 19.61" | 3.20" | 45.10" | 24.5 F | N/A |
| 10/28 | 29 F | 51 F | 40 F | 1.35" | 19.65" | 3.40" | 45.30" | 24.8 F | N/A |
| 10/29 | 29 F | 51 F | 40 F | 1.38" | 19.68" | 3.50" | 45.40" | 25.1 F | N/A |
| 10/30 | 29 F | 50 F | 40 F | 1.42" | 19.72" | 3.70" | 45.60" | 25.4 F | N/A |
| 10/31 | 29 F | 50 F | 39 F | 1.45" | 19.75" | 3.90" | 45.80" | 25.7 F | N/A |
